<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- <h4>用户来源</h4> -->
      <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
      <div id="main" style="width: 750px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from "echarts";
// 引入深拷贝插件
import _ from "lodash";
export default {
  data() {
    return {
      options: {
        title: {
          text: "用户来源"
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
            label: {
              backgroundColor: "#E9EEF3"
            }
          }
        },
        grid: {
          left: "3%",
          right: "4%",
          bottom: "3%",
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: "value"
          }
        ]
      }
    };
  },
  created() {},
  mounted() {
    this.MyEcharts();
  },
  methods: {
    // 获取图表数据

    async MyEcharts() {
      // 基于准备好的dom，初始化echarts实例
      var myChart = echarts.init(document.getElementById("main"));
      // 指定图表的配置项和数据
      // var option = {

      const { data: ret } = await this.$http.get("/reports/type/1");
      console.log(ret);
      if (ret.meta.status !== 200) {
        return this.$message.error("获取数据报表失败");
      }
      // 插件.merge 合并
      let data = _.merge(ret.data, this.options);
      // 使用刚指定的配置项和数据显示图表。
      myChart.setOption(data);
    }
  }
};
</script>

<style></style>
